Al-based bulk metallic glass with large plasticity and ultrahigh strength

摘要

In this study, we reported an Al86Ni7Er5Co1La1 bulk metallic glass, which exhibits ultrahigh strength of up to similar to 1525 MPa together with apparent work hardening and large ductile of similar to 11%. The high plasticity is attributed to the multiple shear bands, which restrict the catastrophic failure of the bulk metallic glass, and finally increase the flow stress of the material resulting in a work hardening behavior. (C) 2015 Elsevier B.V. All rights reserved.